Hydrochloric acid (HCl) reacts with sodium carbonate (Na_2CO_3), forming sodium chloride (NaCl), water (H_2O), and carbon dioxide (CO_2). This equation is balanced as written:
2HCl(aq)+Na_2CO_3(aq)---> 2NaCl(aq)+H_2O(l)+CO_2(g)
What volume of 1.25 M HCl in liters is needed to react completely (with nothing left over) with 0.500 L of 0.500 M Na_2CO_3? Express your answer to three significant figures and include the appropriate units.